Igneous rock or magmatic rock, is one of the three main rock types, the others
being sedimentary and metamorphic. Igneous rock is formed through the cooling
Photographs and descriptions of intrusive and extrusive igneous rocks with links
to detailed articles by Geology.com.
Igneous rocks are formed by solidification of cooled magma (molten rock) either
below (plutonic) or above (volcanic) the surface of the earth. The magma ...
Jan 15, 2013 ... A quick introduction to igenous rocks. Download the flow chart at http://www.
Igneous rocks are classified according to their mineral content: ... Intermediate
rocks are roughly even mixtures of felsic minerals (mainly plagioclase) and mafic
Jul 14, 2000 ... An Introduction to Igneous Rocks for the Beginner ... Alphabetical Listing of
Igneous Rocks - links to pictures/descriptions. Bowen's Reaction ...
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Igneous rock definition at Dictionary.com, a free online dictionary with
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Igneous rocks are commonly classified by their composition and texture. Most are
composed of the eight most abundant elements in the Earth's crust. Because of ...
Click the labeled features below to see microscopic views of igneous crystals
forming under different cooling conditions. Relate the resulting texture of each